Results 71 to 80 of about 4,427 (203)

Tree canopy shapes the survival of oak and beech saplings during the regeneration stage along an elevation‐driven temperature gradient

Journal of Ecology, Volume 114, Issue 7, July 2026.
Forests are complex, multilayered systems in which canopy cover strongly influences understorey microclimates. Here, we show that the temperature‐buffering effect of the forest canopy affects tree regeneration differently among species along an elevation gradient in the French Pyrenees.
Benjamin Roux, Yann Vitasse, Sylvain Delzon, Thomas Caignard, Richard Michalet   +4 more
wiley   +1 more source

Au sujet de Pteridium aquilinum

Bulletin mensuel de la Société linnéenne de Lyon, 1965
Combes F. Au sujet de Pteridium aquilinum. In: Bulletin mensuel de la Société linnéenne de Lyon, 34ᵉ année, n°8, octobre 1965. p. 340.
openaire   +2 more sources

The missing woodland story: Implications of 1700 years of stand‐scale change on ‘naturalness’ and managing remnant broadleaved woodlands

People and Nature, Volume 8, Issue 6, Page 1572-1587, June 2026.
Abstract Longer‐term perspectives—equivalent to the lifespans of long‐lived trees—are required to fully inform perceptions of ‘naturalness’ used in woodland conservation and management. Stand‐scale dynamics of an old growth temperate woodland are reconstructed using palaeoecological data.
Annabel Everard, J. Edward Schofield, Tim Mighall, Scott Timpany, Gill Plunkett   +4 more
wiley   +1 more source

Purification of ptaquiloside, a carcinogen from Pteridium aquilinum

, 1995
Ptaquiloside, the major carcinogen of bracken fern (Pteridium aquilinum), was isolated in high yield from milled freeze-dried plant material. Because the compound is unstable, a new method was devised to avoid steps which caused loss of activity.
Ng, Jack C., Bartley, John, Oelrichs, Peter B.   +2 more
core   +1 more source

PRIMER REPORTE DE Pteridium caudatum (DENNSTAEDTIACEAE) EN LA ISLA DE PROVIDENCIA, COLOMBIA

Acta Biológica Colombiana, 2011
Se reporta por la primera vez la presencia del helecho invasor Pteridium aquilinum(L.) Kunh en la Isla de Providencia, Colombia. La especie ha sido encontrada confinada como planta decorativa en jardines y patios, como silvestre en la localidad El Pico ...
Brigitte Gavio, Alerxandra Tobar-Vargas
doaj  

The Extra-Nuptial Nectaries in the Common Brake, Pteridium aquilinum [PDF]

Science, 1901
n ...
openaire   +3 more sources

Characterization of cystically dilated gland of gastric mucosa of mouse exposed to Pteridium aquilinum.

, 2012
Pteridium aquilinum treated mice (Group 2) displaying a cystically dilated gland stained with hematoxylin and eosin (a), Alcian Blue (pH = 2,5) (b), and immunostained for Sialyl-Lewis x antigen (c). Bar = 20 µm.
Steven R. Head (158299), Valérie Michel (158304), Celso A. Reis (158314), Gilberto E. Hernandez (158289), Ana S. Carvalho (158284), Joana Gomes (158278), Suzanne L. Papp (158294), Leonor David (158309), Ana Magalhães (158282), Fátima Gärtner (77491), Eliette Touati (158311)   +10 more
core   +1 more source

Mensuration of sialic acid seric level in nelore cattle exposed and nonexposed to bracken fern (Pteridium aquilinum) /
Aferição da concentração sérica de ácido siálico em novilhas da raça nelore expostas e não expostas à samambaia (Pteridium aquilinum)

Semina: Ciências Agrárias, 2008
The Pteridium aquilinum is one toxic plant present in several countries of the world. The chronic ingestion causes diseases to livestock with negative economics repercussion.
Wilmar Sachetin Marçal, Marcos Coelho de Carvalho, Nelson Parizotto Junior, Mariana Itimura de Camargo   +3 more
doaj   +1 more source

Bovine papillomavirus type 2 in enzootic haematuria aetiology/
Papilomavírus bovino tipo 2 na etiologia da hematúria enzoótica bovina

Semina: Ciências Agrárias, 2002
Bovine enzootic haematuria (EH) occurs worldwide and is endemic in regions with bracken fern (Pteridium aquilinum) infested grassland. EH is chronic disease that is characterized by clinical signs of intermitent haematuria, anemia and progressive ...
Amauri Alcindo Alfieri, Alice Fernandes Alfieri, Antônio Carlos Faria dos Reis, Sheila Rezler Wosiacki   +3 more
doaj   +1 more source

Bracken (\kur{Pteridium aquilinum}) fertility affecting factors

, 2015
Usually, Pteridium aquilinum reproduces vigorously by the use of rhizomes. An occurence of fertile populations is rather rarely recorded.
JONÁŠOVÁ, Barbora
core